UML activity diagram

After much delay, the UML activity diagram has done. Thanks to the idea of all the teammate.
The link to the activity diagram is at below:

UML activity diagram

Prepared by: Quek Wei Chun (Document Manager)
Teh Kok Hou (Programmer)
Yeoh Tih Huang (Programming Leader)
Edited by: Chow Yen Cheng (Team Leader)
Checked by: Tan Joo Bing (Design Manager)